Statistics as in GPA, SAT/ACT scores, strength of schedule, etc.
Most of them. Google Common Data Set and look at section C for each school in which you’re interested.
California State Universities (CSUs) except for CPSLO care exclusively about courses, grades, test scores, state and local area residency, and intended major for frosh admission.
Texas public universities admit large portions of their classes exclusively on rank and state residency, and/or rank and test scores, in addition to course requirements.
Among top private universities, Northeastern, Vanderbilt, and Wash U all have a reputation for focusing more on high test scores and less on ECs than do many of their peer schools. Arguably, Northeastern and Vandy have been particularly successful in employing this strategy to strengthen their positions in the US News rankings.
The University of Chicago also seems to be emphasizing very high test scores of late (though it has always had a stellar academic reputation, if not a USNWR ranking commensurate with that reputation).
all colleges. I can’t think of any who might say your ECs are more important than your transcript.
McGill, and almost every university outside of the US, along with public flagship universities.
Extracurriculars and such get magnified in importance at the super selective schools because so many applicants have top-end academic credentials, so something else is used to distinguish between them.